Please help with any of them i don’t know how to solve this

Which graph represents the parent function of y=(x+2)(x-2)

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is